(Metal) Editor Crashes on MemoryManager::Deallocate

Hi!

I'm getting a *lot* of crashes with Unity on 2019.3.0f6. My project is about 6GB, so not small, not big (at least IMHO).

The crashes blow up the Unity editor. The macOS crash reporter is showing this stack trace in particular (the interesting parts in bold):

Thread 27 Crashed:: BatchDeleteObjects
0 libsystem_kernel.dylib 0x00007fff71faa7fa __pthread_kill + 10
1 libsystem_pthread.dylib 0x00007fff72067bc1 pthread_kill + 432
2 libsystem_c.dylib 0x00007fff71f31a1c abort + 120
3 com.unity3d.UnityEditor5.x 0x00000001036cda1e HandleSignal(int, __siginfo*, void*) + 62
4 libmonobdwgc-2.0.dylib 0x000000014cb3a269 mono_chain_signal + 79
5 libmonobdwgc-2.0.dylib 0x000000014cb3a5ac sigabrt_signal_handler + 86
6 libsystem_platform.dylib 0x00007fff7205c42d _sigtramp + 29
7 ??? 000000000000000000 0 + 0
8 libsystem_c.dylib 0x00007fff71f31a1c abort + 120
9 libsystem_malloc.dylib 0x00007fff72027647 malloc_vreport + 548
10 libsystem_malloc.dylib 0x00007fff7202a40e malloc_report + 151
11 com.unity3d.UnityEditor5.x 0x000000010265a4c3 MemoryManager:eallocate(void*, char const*, int) + 467
12 com.unity3d.UnityEditor5.x 0x000000010265aa67 MemoryManager:eallocate(void*, MemLabelId const&, char const*, int) + 1143
13 com.unity3d.UnityEditor5.x 0x00000001001f430c dynamic_array<unsigned char, 0ul>::~dynamic_array() + 44
14 com.unity3d.UnityEditor5.x 0x0000000102c82202 Texture2D:estroyTexture() + 66
15 com.unity3d.UnityEditor5.x 0x0000000102c8c799 Texture2D::~Texture2D() + 25
16 com.unity3d.UnityEditor5.x 0x00000001026eb1bf delete_object_internal_step2(Object*) + 31
17 com.unity3d.UnityEditor5.x 0x000000010307586e BatchDeleteStep2Threaded(void*) + 238
18 com.unity3d.UnityEditor5.x 0x0000000103558e1c Thread::RunThreadWrapper(void*) + 1228
19 libsystem_pthread.dylib 0x00007fff72067e65 _pthread_start + 148
20 libsystem_pthread.dylib 0x00007fff7206383b thread_start + 15

I do have thousands of textures in my project. My preliminary investigation hasn't found any that are unusually large or corrupt.

I have tried deleting the temp files and reimporting assets, which takes quite a while and so far hasn't done anything. Running macOS 10.15.3, plenty of RAM, disk. Not seeing crashes in any other software. Ran the BIOS hardware checker, reported everything is fine.

Is anyone else seeing these crashes? Any suggestions...? Unity crashing all the time is... not fun.

 

Here is another crash that occurred when I tried to quit, looks like a similar root cause:

Thread 0 Crashed:: Main Thread Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x00007fff71d1a7fa __pthread_kill + 10
1 libsystem_pthread.dylib 0x00007fff71dd7bc1 pthread_kill + 432
2 libsystem_c.dylib 0x00007fff71ca1a1c abort + 120
3 com.unity3d.UnityEditor5.x 0x00000001100ffa1e HandleSignal(int, __siginfo*, void*) + 62
4 libmonobdwgc-2.0.dylib 0x000000015953a269 mono_chain_signal + 79
5 libmonobdwgc-2.0.dylib 0x000000015953a5ac sigabrt_signal_handler + 86
6 libsystem_platform.dylib 0x00007fff71dcc42d _sigtramp + 29
7 ??? 000000000000000000 0 + 0
8 libsystem_c.dylib 0x00007fff71ca1a1c abort + 120
9 libsystem_malloc.dylib 0x00007fff71d97647 malloc_vreport + 548
10 libsystem_malloc.dylib 0x00007fff71d9a40e malloc_report + 151
11 com.unity3d.UnityEditor5.x 0x000000010f08c4c3 MemoryManager:eallocate(void*, char const*, int) + 467
12 com.unity3d.UnityEditor5.x 0x000000010f08ca67 MemoryManager:eallocate(void*, MemLabelId const&, char const*, int) + 1143
13 com.unity3d.UnityEditor5.x 0x000000010cc2630c dynamic_array<unsigned char, 0ul>::~dynamic_array() + 44
14 com.unity3d.UnityEditor5.x 0x000000010f6b4202 Texture2D:estroyTexture() + 66
15 com.unity3d.UnityEditor5.x 0x000000010f6be799 Texture2D::~Texture2D() + 25
16 com.unity3d.UnityEditor5.x 0x000000010f11acfc delete_object_internal(Object*) + 44
17 com.unity3d.UnityEditor5.x 0x000000010fa8c3de CleanupAllObjects() + 1646
18 com.unity3d.UnityEditor5.x 0x000000010fa8cb3a CleanupEngine() + 42
19 com.unity3d.UnityEditor5.x 0x000000010d8bcc7d Application::CoreShutdown() + 253
20 com.unity3d.UnityEditor5.x 0x000000010d8c67ba Application::Terminate(bool) + 1002
21 com.unity3d.UnityEditor5.x 0x000000011122f950 -[EditorApplication applicationShouldTerminate:] + 64
22 com.apple.AppKit 0x00007fff379d6e17 -[NSApplication _docController:shouldTerminate:] + 88
23 com.apple.AppKit 0x00007fff379d6cec __91-[NSDocumentController(NSInternal) _closeAllDocumentsWithDelegate:shouldTerminateSelector:]_block_invoke + 448
24 com.apple.AppKit 0x00007fff379d69a6 -[NSDocumentController(NSInternal) _closeAllDocumentsWithDelegate:shouldTerminateSelector:] + 1187
25 com.apple.AppKit 0x00007fff379d64dc -[NSDocumentController(NSInternal) __closeAllDocumentsWithDelegate:shouldTerminateSelector:] + 291
26 com.apple.AppKit 0x00007fff379d6109 -[NSApplication _shouldTerminate] + 963
27 com.apple.AppKit 0x00007fff379c3542 -[NSApplication terminate:] + 750
28 com.unity3d.UnityEditor5.x 0x0000000111230be2 -[EditorApplication terminate:] + 114
29 com.unity3d.UnityEditor5.x 0x000000011122d1ca EditorApplicationForwardingTarget::Execute(MenuItem const&) + 170
30 com.unity3d.UnityEditor5.x 0x000000010d5a136a MenuController::ExecuteMenuItem(MenuItem&, MenuController::ExecutionCause) + 122
31 com.unity3d.UnityEditor5.x 0x000000010ed8dea3 EditorApplication_CUSTOM_ExecuteMenuItem(ScriptingBackendNativeStringPtrOpaque*) + 275

 

...and another:

Thread 39 Crashed:: UnityGfxDeviceWorker
0 libsystem_kernel.dylib 0x00007fff6f5287fa __pthread_kill + 10
1 libsystem_pthread.dylib 0x00007fff6f5e5bc1 pthread_kill + 432
2 libsystem_c.dylib 0x00007fff6f4afa1c abort + 120
3 com.unity3d.UnityEditor5.x 0x000000010364da1e HandleSignal(int, __siginfo*, void*) + 62
4 libmonobdwgc-2.0.dylib 0x0000000144d3a269 mono_chain_signal + 79
5 libmonobdwgc-2.0.dylib 0x0000000144d3a5ac sigabrt_signal_handler + 86
6 libsystem_platform.dylib 0x00007fff6f5da42d _sigtramp + 29
7 ??? 000000000000000000 0 + 0
8 libsystem_c.dylib 0x00007fff6f4afa1c abort + 120
9 libsystem_malloc.dylib 0x00007fff6f5a5647 malloc_vreport + 548
10 libsystem_malloc.dylib 0x00007fff6f5a840e malloc_report + 151
11 com.unity3d.UnityEditor5.x 0x00000001025da4c3 MemoryManager:eallocate(void*, char const*, int) + 467
12 com.unity3d.UnityEditor5.x 0x00000001025daa67 MemoryManager:eallocate(void*, MemLabelId const&, char const*, int) + 1143
13 com.unity3d.UnityEditor5.x 0x00000001025da7eb MemoryManager:eallocate(void*, MemLabelId const&, char const*, int) + 507
14 com.unity3d.UnityEditor5.x 0x00000001025da7eb MemoryManager:eallocate(void*, MemLabelId const&, char const*, int) + 507
15 com.unity3d.UnityEditor5.x 0x000000010251fde1 GfxDeviceWorker::ReadBufferDataComplete(ThreadedStreamBuffer&) + 353
16 com.unity3d.UnityEditor5.x 0x000000010251a81a GfxDeviceWorker::RunCommand(ThreadedStreamBuffer&) + 49210
17 com.unity3d.UnityEditor5.x 0x00000001045677bc GfxDeviceWorkerAutoreleasePoolProxy + 60
18 com.unity3d.UnityEditor5.x 0x000000010251ef30 GfxDeviceWorker::RunExt(ThreadedStreamBuffer&) + 640
19 com.unity3d.UnityEditor5.x 0x000000010250e238 GfxDeviceWorker::RunGfxDeviceWorker(void*) + 152
20 com.unity3d.UnityEditor5.x 0x00000001034d8e1c Thread::RunThreadWrapper(void*) + 1228
21 libsystem_pthread.dylib 0x00007fff6f5e5e65 _pthread_start + 148
22 libsystem_pthread.dylib 0x00007fff6f5e183b thread_start + 15

 

All of these seem to be related to Unity internal memory management. Can't think of anything I can do to fix...

 

And when deleting all the temp files and rebuilding the project...

Thread 0 Crashed:: tid_307 Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x00007fff6b8f27fa __pthread_kill + 10
1 libsystem_pthread.dylib 0x00007fff6b9afbc1 pthread_kill + 432
2 libsystem_c.dylib 0x00007fff6b879a1c abort + 120
3 com.unity3d.UnityEditor5.x 0x000000010e585a1e HandleSignal(int, __siginfo*, void*) + 62
4 libmonobdwgc-2.0.dylib 0x00000001470ba269 mono_chain_signal + 79
5 libmonobdwgc-2.0.dylib 0x00000001470ba5ac sigabrt_signal_handler + 86
6 libsystem_platform.dylib 0x00007fff6b9a442d _sigtramp + 29
7 ??? 000000000000000000 0 + 0
8 libsystem_c.dylib 0x00007fff6b879a1c abort + 120
9 libsystem_malloc.dylib 0x00007fff6b96f647 malloc_vreport + 548
10 libsystem_malloc.dylib 0x00007fff6b97240e malloc_report + 151
11 com.unity3d.UnityEditor5.x 0x000000010d5124c3 MemoryManager:eallocate(void*, char const*, int) + 467
12 com.unity3d.UnityEditor5.x 0x000000010d512a67 MemoryManager:eallocate(void*, MemLabelId const&, char const*, int) + 1143
13 com.unity3d.UnityEditor5.x 0x000000010b0ac30c dynamic_array<unsigned char, 0ul>::~dynamic_array() + 44
14 com.unity3d.UnityEditor5.x 0x000000010db3a202 Texture2D:estroyTexture() + 66
15 com.unity3d.UnityEditor5.x 0x000000010db44799 Texture2D::~Texture2D() + 25
16 com.unity3d.UnityEditor5.x 0x000000010d5a0b88 UnloadObject(Object*) + 56
17 com.unity3d.UnityEditor5.x 0x000000010cbf9a68 UnloadImportedAssetsNotPresentInSnapshot(LoadedImportedAssetsSnapshot const&) + 728
18 com.unity3d.UnityEditor5.x 0x000000010ccb6550 AssetImportManager::Import(core::hash_map<AssetDatabase::ImporterID, ImporterInfo, core::hash<AssetDatabase::ImporterID>, std::__1::equal_to<AssetDatabase::ImporterID> > const&, dynamic_array<PostprocessorInfo, 0ul> const&, AssetResolver&, CategorizedAssets&, IImportProgress*, core::hash_set<UnityGUID, core::hash<UnityGUID>, std::__1::equal_to<UnityGUID> > const&, LoadedImportedAssetsSnapshot const*, core::hash_set<core::basic_string<char, core::StringStorageDefault<char> >, core::hash<core::basic_string<char, core::StringStorageDefault<char> > >, std::__1::equal_to<core::basic_string<char, core::StringStorageDefault<char> > > >&, CrashedAssetImportsDatabase&, core::hash_set<ArtifactKey, core::hash<ArtifactKey>, std::__1::equal_to<ArtifactKey> >&) + 2592
19 com.unity3d.UnityEditor5.x 0x000000010cc39873 RefreshInternalV2(AssetDatabase::UpdateAssetOptions, ScanFilter const&, InternalRefreshFlagsV2) + 9619
20 com.unity3d.UnityEditor5.x 0x000000010cc2e60a StopAssetImportingV2(AssetDatabase::UpdateAssetOptions, InternalRefreshFlagsV2, ScanFilter const*) + 314
21 com.unity3d.UnityEditor5.x 0x000000010cc2ea3f RefreshV2(AssetDatabase::UpdateAssetOptions) + 143
22 com.unity3d.UnityEditor5.x 0x000000010cb121ea AssetDatabase::Refresh(AssetDatabase::UpdateAssetOptions) + 298
23 com.unity3d.UnityEditor5.x 0x000000010bd36100 Application::InitializeProject() + 20688
24 com.unity3d.UnityEditor5.x 0x000000010f6b619d -[EditorApplication applicationDidFinishLaunching:] + 221
25 com.apple.CoreFoundation 0x00007fff340fd35f __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 12
26 com.apple.CoreFoundation 0x00007fff340fd2f3 ___CFXRegistrationPost1_block_invoke + 63
27 com.apple.CoreFoundation 0x00007fff340fd268 _CFXRegistrationPost1 + 372
28 com.apple.CoreFoundation 0x00007fff340fcebe ___CFXNotificationPost_block_invoke + 97
29 com.apple.CoreFoundation 0x00007fff340cc7e2 -[_CFXNotificationRegistrar findbjectbserver:enumerator:] + 1575
30 com.apple.CoreFoundation 0x00007fff340cbc82 _CFXNotificationPost + 1351
31 com.apple.Foundation 0x00007fff36751a22 -[NSNotificationCenter postNotificationNamebject:userInfo:] + 59
32 com.apple.AppKit 0x00007fff312d4fef -[NSApplication _postDidFinishNotification] + 312
33 com.apple.AppKit 0x00007fff312d4d32 -[NSApplication _sendFinishLaunchingNotification] + 208
34 com.apple.AppKit 0x00007fff312d1df3 -[NSApplication(NSAppleEventHandling) _handleAEOpenEvent:] + 549
35 com.apple.AppKit 0x00007fff312d1a39 -[NSApplication(NSAppleEventHandling) _handleCoreEvent:withReplyEvent:] + 688
36 com.apple.Foundation 0x00007fff3677d246 -[NSAppleEventManager dispatchRawAppleEvent:withRawReply:handlerRefCon:] + 308
37 com.apple.Foundation 0x00007fff3677d0b0 _NSAppleEventManagerGenericHandler + 98
38 com.apple.AE 0x00007fff35481092 0x7fff35474000 + 53394
39 com.apple.AE 0x00007fff354807b9 0x7fff35474000 + 51129
40 com.apple.AE 0x00007fff35478a27 aeProcessAppleEvent + 449
41 com.apple.HIToolbox 0x00007fff32c6d2b8 AEProcessAppleEvent + 54
42 com.apple.AppKit 0x00007fff312cbe4c _DPSNextEvent + 1670
43 com.apple.AppKit 0x00007fff312ca380 -[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1352
44 com.apple.AppKit 0x00007fff312bc09e -[NSApplication run] + 658
45 com.apple.AppKit 0x00007fff3128e465 NSApplicationMain + 777
46 com.unity3d.UnityEditor5.x 0x000000010f6f84bf EditorMain(int, char const**) + 1055
47 com.unity3d.UnityEditor5.x 0x000000010f6f87c9 main + 9
48 libdyld.dylib 0x00007fff6b7ab7fd start + 1

 

Try use earlier version of Unity and see, if that makes difference. Other than that, you better use editor report option. Send all crashes. That automatically will send you hardware specs, which you should post it here as well.

Try make reproducable error if possible with details.

Other than that, try maybe split scene in multiple scenes, to reduce number of loaded objects.

 

Yeah, I've already reported, including sending my project in. Now I'm just waiting for feedback.

FWIW, It's an iMac, 4.2GHz i7. 32GB of RAM. Radeon Pro 580 8 GB. Not getting any kind of other memory-related error messages. With Unity and Chrome, etc. Activity Monitor is only showing 11-12GB of memory in use with absolutely no memory pressure.

The stack traces appear to indicate that it's failing trying to deallocate memory that was never allocated in the first place.

FWIW the game seems to run fine when exported, and generally runs fine in the editor... until it doesn't, lol.

RE: earlier version... my understanding was I can only go forward, not backward. I've been on 2019.3.x for a bit now, unfortunately. If I could go back to 2019.2.x I would.

 

Generally there is no much of issue going backward, as long you don't use specific features, which are used by your latest used Unity.
There are some unofficial instructions, how to go backwards.
I think someone also posted few months back. Typically to change line, or so, in manifest files, or relevant.

 

Successfully back-ported to 2019.2.20f1. All I had to do was select the older version in Unity Hub. I got a warning message about down-rev but otherwise it happily opened up. Only issues were tweaking the versions of a few things in the Package Manager and having to redo/add/tweak a few Assembly Definitions.

I'll be curious to see how long it takes for the 2019.3 bug to get resolved. I'll post here when I hear back.

 

@GainfulSage is project / Unity stable now for you?

 

So far, yes. After a few hours in the Editor, generating a few builds, no crashes.

 

Unity was able to successfully repro. Here's the public tracker link:

https://issuetracker.unity3d.com/is...loading-scene-with-a-specific-skybox-material

The texture that is causing the issue appears to be a skybox material I bought from the Unity Asset store. Per the bug report, Unity was able to repro with a few versions of Unity but not all.

Really glad that a) Unity got back to me so quickly and b) that I was able to back-rev to 2019.2.x to continue to get work done. No idea what it is about that specific texture that's causing the issue.

 

Just updated the thread title to match the bug just on the off chance that someone else runs into this and is searching for the issue.

 

Just got an email from Unity - "Thanks for reporting the issue. We have fixed this problem and it should not appear in Unity 2019.3.3f1 and above."